1/********************************************************************
2 * COPYRIGHT:
3 * Copyright (c) 2008-2010, International Business Machines Corporation and
4 * others. All Rights Reserved.
5 ********************************************************************/
6//
7//  file:  regextxt.h
8//
9//  This file contains utility code for supporting UText in the regular expression engine.
10//
11//  This class is internal to the regular expression implementation.
12//  For the public Regular Expression API, see the file "unicode/regex.h"
13//
14
15#ifndef _REGEXTXT_H
16#define _REGEXTXT_H
17
18#include "unicode/utypes.h"
19#include "unicode/utext.h"
20
21U_NAMESPACE_BEGIN
22
23#define UTEXT_USES_U16(ut) (NULL==((ut)->pFuncs->mapNativeIndexToUTF16))
24
25#if 0
26#define REGEX_DISABLE_CHUNK_MODE 1
27#endif
28
29#ifdef REGEX_DISABLE_CHUNK_MODE
30#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) (FALSE)
31#else
32#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) ((0==((ut)->chunkNativeStart))&&((len)==((ut)->chunkNativeLimit))&&((len)==((ut)->nativeIndexingLimit)))
33#endif
34
35struct URegexUTextUnescapeCharContext {
36    UText *text;
37    int32_t lastOffset;
38};
39#define U_REGEX_UTEXT_UNESCAPE_CONTEXT(text) { (text), -1 }
40
41U_CFUNC UChar U_CALLCONV
42uregex_utext_unescape_charAt(int32_t offset, void * /* struct URegexUTextUnescapeCharContext* */ context);
43U_CFUNC UChar U_CALLCONV
44uregex_ucstr_unescape_charAt(int32_t offset, void * /* UChar* */ context);
45
46U_NAMESPACE_END
47
48#endif
49